266101660 has 48 divisors (see below), whose sum is σ = 610727040. Its totient is φ = 96587840.

The previous prime is 266101657. The next prime is 266101679. The reversal of 266101660 is 66101662.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223587 + ... + 224773.

It is an arithmetic number, because the mean of its divisors is an integer number (12723480).

Almost surely, 2^266101660 is an apocalyptic number.

266101660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266101660 is an abundant number, since it is smaller than the sum of its proper divisors (344625380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

266101660 is a wasteful number, since it uses less digits than its factorization.

266101660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2226 (or 2224 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 266101660 is about 16312.6227198449. The cubic root of 266101660 is about 643.2046783516.

It can be divided in two parts, 266 and 101660, that added together give a triangular number (101926 = T₄₅₁).

The spelling of 266101660 in words is "two hundred sixty-six million, one hundred one thousand, six hundred sixty".